CVE-2026-70347
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
Risk Assessment
An authorized user could exploit this vulnerability to gain higher privileges, potentially leading to system takeover.
Recommendation
Install the latest security updates for Windows Installer.
Other vulnerabilities in Windows Installer
See all- CVE-2026-96308High
Use-after-free vulnerability in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-96307High
Use-after-free vulnerability in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-96305High
Use-after-free vulnerability in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-96302High
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-88124High
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-88080High
Use after free vulnerability in Windows Installer. An authorized attacker can elevate privileges locally.
- CVE-2026-88076High
Null pointer dereference vulnerability in Windows Installer. An authorized attacker can elevate privileges locally.
- CVE-2026-87715High
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-87711High
Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-87708High
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS